Border wall

Border Wall: Map of August 30, 2019 DHS Waiver

The Trump Administration has continued to advance work on the border wall between the U.S. and Mexico. Recently, the Department of Homeland Security (DHS) formally announced waivers for new sections of wall along the border in the Lower Rio Grande …

Scientist consensus broadens discussions on the US-Mexico border wall and its threats to biodiversity

Fences and walls erected along international boundaries in the name of national security have unintended but significant consequences for biodiversity. In North America, along the 3,200-km US-Mexico border, barrier construction in the past and recent efforts by the Trump administration to complete a continuous border 'wall' threaten some of the continent's most biologically diverse regions. Already-built sections of the wall, stretching over 1,000 km, are reducing the area, quality, and connectivity of plant and animal habitats, and compromising millions of dollars and acres invested in binational conservation. Political and media attention, however, often misrepresent the harm done to biodiversity. In 2018, we published a paper in BioScience calling on scientists to express unified concern over the border wall's negative impacts on wildlife, habitat, and binational collaboration in conservation and research. In a demonstration of concern felt worldwide, 3,000 scientists from 43 countries endorsed the declaration. The scientific consensus over the border wall received mass media attention internationally and is influencing the development of national legislation and appropriations to better protect biodiversity, such as by changing wall design and potentially defunding construction. This case demonstrates the important role scientists can play by calling attention to scientific evidence and reminding politicians of the long-term impacts of their decisions on the planet.

Keeping Up with the Border Wall

When you think of the U.S.-Mexico border, a myriad of 'hot-button' issues may go through your head. Ethical dilemmas, immigration policy and border security are just a few. There is a torrent of conversation on these issues here in Washington, D.C., but one issue that isn't discussed as widely is the impact on wildlife and biodiversity. Add to the chaos the seemingly constant changes in the location and types of border wall the current administration proposes to construct. Can you keep up?

Border Wall: Map of April 23, 2019 DHS Waivers

The Trump Administration has continued to advance work on the border wall between the U.S. and Mexico. Recently, the Department of Homeland Security (DHS) formally announced waivers for new sections of wall in western portions of the border. Here we …

Border Wall: Map of February 2019 DHS-DOD Request

The Trump Administration has continued to advance work on the border wall between the U.S. and Mexico. Recently, the Department of Homeland Security (DHS) made a formal request to the Department of Defense to build extensive new sections of wall in …

The Border Wall and the Rio Grande

An interactive story map detailing how border wall construction would impact the people, places and wildlife of the Lower Rio Grande Valley (LRGV) in Texas. In the absence of a comprehensive environmental study of the impacts of the border wall, …

In the Shadow of the Wall: Wildlife on the Line in the U.S.-Mexico Borderlands

Provided is Defenders' comprehensive report on border wall impacts to wildlife, which was produced in support by CCI.

Nature divided, scientists united: US-Mexico border wall threatens biodiversity and binational conservation

Fences and walls erected along international boundaries in the name of national security have unintended but significant consequences for biodiversity (Trouwborst et al. 2016). In North America, along the 3,200 kilometer U.S.-Mexico border, fence and …